Support » Plugin: BackWPup - WordPress Backup Plugin » Allowed Memory Exhausted with S3 backup in 3.7.0

  • G’day,

    Getting this error on multiple websites with v3.7.0:

    PHP Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 5242912 bytes) in wp-content/plugins/backwpup/inc/class-destination-s3.php on line 773

    This was also happening in v3.6.10, v3.6.11. Does not happen in v3.6.9.

    It only happens on sites with large backup files. It seems that with the new AWS SDK, something there has been broken such that the upload is trying to gulp large chunks of the file when pushing to S3.


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  • Plugin Support duongcuong96


    Hi @webaware
    it only happens with S3 destination? Did you try with Dropbox?

    Plugin Support duongcuong96


    I think the issue can be marked as resolved now 🙂
    But if you still have any issues, please let me know!
    Btw, If you find BackWPUp is useful for you, we would really appreciate it if you leave a positive review and rating.
    This would encourage us to develop new free features and provide free support 😀

    @duongcuong96 I didn’t receive notifications of your notes, so my apologies for not responding to them. The issue is not resolved, it is a problem with how the latest version of the AWS SDK is being used. Looks like memory is being allocated and not released somewhere there.

    No, I did not try with DropBox, as my backup procedures require a secure Amazon S3 bucket. Also, as above, the problem is in how the AWS SDK is being used; how will changing to DropBox fix a bug in your AWS code?

    This problem has existed since v3.6.10 and was present in v3.6.11 as well as v3.7.0, so it should be familiar to you by now 🙂


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